chore: rebuild release package

public/style.css

@@ -8888,6 +8888,12 @@ html[data-theme='wasteland'] .mode-select {
   background-position: right 10px center;
 }
 
+@media (min-width: 721px) and (max-width: 1100px) {
+  html[data-theme='wasteland'] body {
+    background-position: center, center, 75% 50%;
+  }
+}
+
 @media (max-width: 720px) {
   html[data-theme='wasteland'] {
     --sidebar-width: min(88vw, 320px);
@@ -8899,7 +8905,7 @@ html[data-theme='wasteland'] .mode-select {
       linear-gradient(90deg, rgba(3, 5, 5, 0.82), rgba(3, 5, 5, 0.46)),
       linear-gradient(180deg, rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.48)),
       url('assets/themes/wasteland/background.webp');
-    background-position: center, center, 70% 50%;
+    background-position: center, center, 75% 50%;
   }
 
   html[data-theme='wasteland'] .input-area {
@@ -8967,3 +8973,105 @@ html[data-theme='wasteland'] :is(
   -webkit-backdrop-filter: blur(3px) saturate(1.16) brightness(1.28);
   backdrop-filter: blur(3px) saturate(1.16) brightness(1.28);
 }
+
+/* === 桌面侧栏：固定收起与悬浮预览 === */
+:root {
+  --sidebar-rail-width: 14px;
+  --sidebar-hover-shadow: 18px 0 40px rgba(45, 31, 20, 0.16);
+}
+
+:is(
+  html[data-theme='carbon'],
+  html[data-theme='nocturne'],
+  html[data-theme='cinder'],
+  html[data-theme='gilded'],
+  html[data-theme='wasteland']
+) {
+  --sidebar-hover-shadow: 22px 0 52px rgba(0, 0, 0, 0.48);
+}
+
+html[data-theme='gilded'] {
+  --sidebar-hover-shadow: 20px 0 46px rgba(69, 48, 25, 0.22);
+}
+
+.menu-btn:focus-visible {
+  outline: 2px solid var(--accent);
+  outline-offset: 2px;
+}
+
+@media (width > 768px) and (hover: hover) and (pointer: fine) {
+  .menu-btn {
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    width: 32px;
+    height: 32px;
+    flex: 0 0 32px;
+    padding: 0;
+  }
+
+  .app.sidebar-collapsed .sidebar {
+    position: relative;
+    z-index: 90;
+    width: var(--sidebar-width);
+    min-width: var(--sidebar-width);
+    margin-right: calc(var(--sidebar-rail-width) - var(--sidebar-width));
+    transform: translateX(calc(var(--sidebar-rail-width) - var(--sidebar-width)));
+    box-shadow: none;
+    will-change: transform;
+    transition:
+      transform 180ms ease,
+      margin-right 180ms ease,
+      box-shadow 180ms ease;
+  }
+
+  .app.sidebar-collapsed .sidebar:is(:hover, :focus-within) {
+    transform: translateX(0);
+    box-shadow: var(--sidebar-hover-shadow);
+  }
+
+  .app.sidebar-collapsed .sidebar::after {
+    content: '';
+    position: absolute;
+    top: 0;
+    right: 0;
+    bottom: 0;
+    z-index: 3;
+    width: var(--sidebar-rail-width);
+    pointer-events: none;
+    border-left: 1px solid var(--border-color);
+    background:
+      linear-gradient(90deg, transparent, color-mix(in srgb, var(--accent) 12%, transparent)),
+      var(--bg-secondary);
+    box-shadow: inset -1px 0 var(--border-color);
+    opacity: 1;
+    transition: opacity 120ms ease;
+  }
+
+  .app.sidebar-collapsed .sidebar:is(:hover, :focus-within)::after {
+    opacity: 0;
+  }
+
+  html[data-theme='gilded'] .app.sidebar-collapsed .sidebar::after {
+    border-left-color: rgba(138, 97, 37, 0.34);
+    background:
+      linear-gradient(90deg, rgba(255, 247, 234, 0.42), rgba(168, 79, 37, 0.18)),
+      #efe4d2;
+    box-shadow: inset -1px 0 rgba(122, 63, 32, 0.42);
+  }
+
+  html[data-theme='wasteland'] .app.sidebar-collapsed .sidebar::after {
+    border-left-color: rgba(185, 139, 75, 0.38);
+    background:
+      linear-gradient(90deg, rgba(5, 7, 7, 0.82), rgba(196, 154, 90, 0.2)),
+      #080a09;
+    box-shadow: inset -1px 0 rgba(223, 180, 108, 0.32);
+  }
+}
+
+@media (prefers-reduced-motion: reduce) {
+  .app.sidebar-collapsed .sidebar,
+  .app.sidebar-collapsed .sidebar::after {
+    transition: none !important;
+  }
+}